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Bug 1984474

Summary: [RFE] Add pin and non-isolate option
Product: Red Hat Enterprise Linux Fast Datapath Reporter: Kevin Traynor <ktraynor>
Component: openvswitch2.16Assignee: Kevin Traynor <ktraynor>
Status: CLOSED ERRATA QA Contact: qding
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: FDP 21.GCC: ctrautma, dmarchan, hewang, jhsiao, kfida, ralongi
Target Milestone: ---   
Target Release: FDP 21.I   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openvswitch2.16-2.16.0-1.el8fdp Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-12-09 15:37:03 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1984461    
Bug Blocks:    

Description Kevin Traynor 2021-07-21 14:16:54 UTC
Pinning an rxq to a PMD with pmd-rxq-affinity may be done for
various reasons such as reserving a full PMD for an rxq, or to
ensure that multiple rxqs from a port are handled on different PMDs.

Previously pmd-rxq-affinity always isolated the PMD so no other rxqs
could be assigned to it by OVS. There may be cases where there is
unused cycles on those pmds and the user would like other rxqs to
also be able to be assigned to it by OVS.

Add an option to pin the rxq and non-isolate the PMD. The default
behaviour is unchanged, which is pin and isolate the PMD.

In order to pin and non-isolate:
ovs-vsctl set Open_vSwitch . other_config:pmd-rxq-isolate=false

Note this is available only with group assignment type, as pinning
conflicts with the operation of the other rxq assignment algorithms.

Comment 7 errata-xmlrpc 2021-12-09 15:37:03 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (openvswitch2.16 bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:5056